1 /* $OpenBSD: p_lib.c,v 1.61 2024/08/22 12:24:24 tb Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 /* ==================================================================== 59 * Copyright (c) 2006 The OpenSSL Project. All rights reserved. 60 * 61 * Redistribution and use in source and binary forms, with or without 62 * modification, are permitted provided that the following conditions 63 * are met: 64 * 65 * 1. Redistributions of source code must retain the above copyright 66 * notice, this list of conditions and the following disclaimer. 67 * 68 * 2. Redistributions in binary form must reproduce the above copyright 69 * notice, this list of conditions and the following disclaimer in 70 * the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3. All advertising materials mentioning features or use of this 74 * software must display the following acknowledgment: 75 * "This product includes software developed by the OpenSSL Project 76 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 77 * 78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79 * endorse or promote products derived from this software without 80 * prior written permission. For written permission, please contact 81 * licensing@OpenSSL.org. 82 * 83 * 5. Products derived from this software may not be called "OpenSSL" 84 * nor may "OpenSSL" appear in their names without prior written 85 * permission of the OpenSSL Project. 86 * 87 * 6. Redistributions of any form whatsoever must retain the following 88 * acknowledgment: 89 * "This product includes software developed by the OpenSSL Project 90 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 91 * 92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103 * OF THE POSSIBILITY OF SUCH DAMAGE. 104 */ 105 106 #include <stdio.h> 107 #include <stdlib.h> 108 #include <string.h> 109 110 #include <openssl/asn1.h> 111 #include <openssl/bio.h> 112 #include <openssl/cmac.h> 113 #include <openssl/crypto.h> 114 #include <openssl/err.h> 115 #include <openssl/evp.h> 116 #include <openssl/objects.h> 117 #include <openssl/x509.h> 118 119 #ifndef OPENSSL_NO_DH 120 #include <openssl/dh.h> 121 #endif 122 #ifndef OPENSSL_NO_DSA 123 #include <openssl/dsa.h> 124 #endif 125 #ifndef OPENSSL_NO_EC 126 #include <openssl/ec.h> 127 #endif 128 #ifndef OPENSSL_NO_RSA 129 #include <openssl/rsa.h> 130 #endif 131 132 #include "evp_local.h" 133 134 extern const EVP_PKEY_ASN1_METHOD cmac_asn1_meth; 135 extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth; 136 extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meth; 137 extern const EVP_PKEY_ASN1_METHOD dsa1_asn1_meth; 138 extern const EVP_PKEY_ASN1_METHOD dsa2_asn1_meth; 139 extern const EVP_PKEY_ASN1_METHOD dsa3_asn1_meth; 140 extern const EVP_PKEY_ASN1_METHOD dsa4_asn1_meth; 141 extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth; 142 extern const EVP_PKEY_ASN1_METHOD ed25519_asn1_meth; 143 extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth; 144 extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meth; 145 extern const EVP_PKEY_ASN1_METHOD rsa2_asn1_meth; 146 extern const EVP_PKEY_ASN1_METHOD rsa_pss_asn1_meth; 147 extern const EVP_PKEY_ASN1_METHOD x25519_asn1_meth; 148 149 static const EVP_PKEY_ASN1_METHOD *asn1_methods[] = { 150 &cmac_asn1_meth, 151 &dh_asn1_meth, 152 &dsa_asn1_meth, 153 &dsa1_asn1_meth, 154 &dsa2_asn1_meth, 155 &dsa3_asn1_meth, 156 &dsa4_asn1_meth, 157 &eckey_asn1_meth, 158 &ed25519_asn1_meth, 159 &hmac_asn1_meth, 160 &rsa_asn1_meth, 161 &rsa2_asn1_meth, 162 &rsa_pss_asn1_meth, 163 &x25519_asn1_meth, 164 }; 165 166 #define N_ASN1_METHODS (sizeof(asn1_methods) / sizeof(asn1_methods[0])) 167 168 int 169 EVP_PKEY_asn1_get_count(void) 170 { 171 return N_ASN1_METHODS; 172 } 173 LCRYPTO_ALIAS(EVP_PKEY_asn1_get_count); 174 175 const EVP_PKEY_ASN1_METHOD * 176 EVP_PKEY_asn1_get0(int idx) 177 { 178 if (idx < 0 || idx >= N_ASN1_METHODS) 179 return NULL; 180 181 return asn1_methods[idx]; 182 } 183 LCRYPTO_ALIAS(EVP_PKEY_asn1_get0); 184 185 const EVP_PKEY_ASN1_METHOD * 186 EVP_PKEY_asn1_find(ENGINE **engine, int pkey_id) 187 { 188 size_t i; 189 190 if (engine != NULL) 191 *engine = NULL; 192 193 for (i = 0; i < N_ASN1_METHODS; i++) { 194 if (asn1_methods[i]->pkey_id == pkey_id) 195 return asn1_methods[i]->base_method; 196 } 197 198 return NULL; 199 } 200 LCRYPTO_ALIAS(EVP_PKEY_asn1_find); 201 202 const EVP_PKEY_ASN1_METHOD * 203 EVP_PKEY_asn1_find_str(ENGINE **engine, const char *str, int len) 204 { 205 const EVP_PKEY_ASN1_METHOD *ameth; 206 size_t i, str_len; 207 208 if (engine != NULL) 209 *engine = NULL; 210 211 if (len < -1) 212 return NULL; 213 if (len == -1) 214 str_len = strlen(str); 215 else 216 str_len = len; 217 218 for (i = 0; i < N_ASN1_METHODS; i++) { 219 ameth = asn1_methods[i]; 220 if ((ameth->pkey_flags & ASN1_PKEY_ALIAS) != 0) 221 continue; 222 if (strlen(ameth->pem_str) != str_len) 223 continue; 224 if (strncasecmp(ameth->pem_str, str, str_len) == 0) 225 return ameth; 226 } 227 228 return NULL; 229 } 230 LCRYPTO_ALIAS(EVP_PKEY_asn1_find_str); 231 232 int 233 EVP_PKEY_asn1_get0_info(int *pkey_id, int *pkey_base_id, int *pkey_flags, 234 const char **info, const char **pem_str, 235 const EVP_PKEY_ASN1_METHOD *ameth) 236 { 237 if (ameth == NULL) 238 return 0; 239 240 if (pkey_id != NULL) 241 *pkey_id = ameth->pkey_id; 242 if (pkey_base_id != NULL) 243 *pkey_base_id = ameth->base_method->pkey_id; 244 if (pkey_flags != NULL) 245 *pkey_flags = ameth->pkey_flags; 246 if (info != NULL) 247 *info = ameth->info; 248 if (pem_str != NULL) 249 *pem_str = ameth->pem_str; 250 251 return 1; 252 } 253 LCRYPTO_ALIAS(EVP_PKEY_asn1_get0_info); 254 255 const EVP_PKEY_ASN1_METHOD* 256 EVP_PKEY_get0_asn1(const EVP_PKEY *pkey) 257 { 258 return pkey->ameth; 259 } 260 LCRYPTO_ALIAS(EVP_PKEY_get0_asn1); 261 262 int 263 EVP_PKEY_bits(const EVP_PKEY *pkey) 264 { 265 if (pkey && pkey->ameth && pkey->ameth->pkey_bits) 266 return pkey->ameth->pkey_bits(pkey); 267 return 0; 268 } 269 LCRYPTO_ALIAS(EVP_PKEY_bits); 270 271 int 272 EVP_PKEY_security_bits(const EVP_PKEY *pkey) 273 { 274 if (pkey == NULL) 275 return 0; 276 if (pkey->ameth == NULL || pkey->ameth->pkey_security_bits == NULL) 277 return -2; 278 279 return pkey->ameth->pkey_security_bits(pkey); 280 } 281 LCRYPTO_ALIAS(EVP_PKEY_security_bits); 282 283 int 284 EVP_PKEY_size(const EVP_PKEY *pkey) 285 { 286 if (pkey && pkey->ameth && pkey->ameth->pkey_size) 287 return pkey->ameth->pkey_size(pkey); 288 return 0; 289 } 290 LCRYPTO_ALIAS(EVP_PKEY_size); 291 292 int 293 EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode) 294 { 295 #ifndef OPENSSL_NO_DSA 296 if (pkey->type == EVP_PKEY_DSA) { 297 int ret = pkey->save_parameters; 298 299 if (mode >= 0) 300 pkey->save_parameters = mode; 301 return (ret); 302 } 303 #endif 304 #ifndef OPENSSL_NO_EC 305 if (pkey->type == EVP_PKEY_EC) { 306 int ret = pkey->save_parameters; 307 308 if (mode >= 0) 309 pkey->save_parameters = mode; 310 return (ret); 311 } 312 #endif 313 return (0); 314 } 315 LCRYPTO_ALIAS(EVP_PKEY_save_parameters); 316 317 int 318 EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) 319 { 320 if (to->type != from->type) { 321 EVPerror(EVP_R_DIFFERENT_KEY_TYPES); 322 goto err; 323 } 324 325 if (EVP_PKEY_missing_parameters(from)) { 326 EVPerror(EVP_R_MISSING_PARAMETERS); 327 goto err; 328 } 329 if (from->ameth && from->ameth->param_copy) 330 return from->ameth->param_copy(to, from); 331 332 err: 333 return 0; 334 } 335 LCRYPTO_ALIAS(EVP_PKEY_copy_parameters); 336 337 int 338 EVP_PKEY_missing_parameters(const EVP_PKEY *pkey) 339 { 340 if (pkey->ameth && pkey->ameth->param_missing) 341 return pkey->ameth->param_missing(pkey); 342 return 0; 343 } 344 LCRYPTO_ALIAS(EVP_PKEY_missing_parameters); 345 346 int 347 EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) 348 { 349 if (a->type != b->type) 350 return -1; 351 if (a->ameth && a->ameth->param_cmp) 352 return a->ameth->param_cmp(a, b); 353 return -2; 354 } 355 LCRYPTO_ALIAS(EVP_PKEY_cmp_parameters); 356 357 int 358 EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) 359 { 360 if (a->type != b->type) 361 return -1; 362 363 if (a->ameth) { 364 int ret; 365 /* Compare parameters if the algorithm has them */ 366 if (a->ameth->param_cmp) { 367 ret = a->ameth->param_cmp(a, b); 368 if (ret <= 0) 369 return ret; 370 } 371 372 if (a->ameth->pub_cmp) 373 return a->ameth->pub_cmp(a, b); 374 } 375 376 return -2; 377 } 378 LCRYPTO_ALIAS(EVP_PKEY_cmp); 379 380 EVP_PKEY * 381 EVP_PKEY_new(void) 382 { 383 EVP_PKEY *pkey; 384 385 if ((pkey = calloc(1, sizeof(*pkey))) == NULL) { 386 EVPerror(ERR_R_MALLOC_FAILURE); 387 return NULL; 388 } 389 390 pkey->type = EVP_PKEY_NONE; 391 pkey->references = 1; 392 pkey->save_parameters = 1; 393 394 return pkey; 395 } 396 LCRYPTO_ALIAS(EVP_PKEY_new); 397 398 int 399 EVP_PKEY_up_ref(EVP_PKEY *pkey) 400 { 401 return CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY) > 1; 402 } 403 LCRYPTO_ALIAS(EVP_PKEY_up_ref); 404 405 static void 406 evp_pkey_free_pkey_ptr(EVP_PKEY *pkey) 407 { 408 if (pkey == NULL || pkey->ameth == NULL || pkey->ameth->pkey_free == NULL) 409 return; 410 411 pkey->ameth->pkey_free(pkey); 412 pkey->pkey.ptr = NULL; 413 } 414 415 void 416 EVP_PKEY_free(EVP_PKEY *pkey) 417 { 418 if (pkey == NULL) 419 return; 420 421 if (CRYPTO_add(&pkey->references, -1, CRYPTO_LOCK_EVP_PKEY) > 0) 422 return; 423 424 evp_pkey_free_pkey_ptr(pkey); 425 freezero(pkey, sizeof(*pkey)); 426 } 427 LCRYPTO_ALIAS(EVP_PKEY_free); 428 429 int 430 EVP_PKEY_set_type(EVP_PKEY *pkey, int type) 431 { 432 const EVP_PKEY_ASN1_METHOD *ameth; 433 434 evp_pkey_free_pkey_ptr(pkey); 435 436 if ((ameth = EVP_PKEY_asn1_find(NULL, type)) == NULL) { 437 EVPerror(EVP_R_UNSUPPORTED_ALGORITHM); 438 return 0; 439 } 440 if (pkey != NULL) { 441 pkey->ameth = ameth; 442 pkey->type = pkey->ameth->pkey_id; 443 } 444 445 return 1; 446 } 447 LCRYPTO_ALIAS(EVP_PKEY_set_type); 448 449 int 450 EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len) 451 { 452 const EVP_PKEY_ASN1_METHOD *ameth; 453 454 evp_pkey_free_pkey_ptr(pkey); 455 456 if ((ameth = EVP_PKEY_asn1_find_str(NULL, str, len)) == NULL) { 457 EVPerror(EVP_R_UNSUPPORTED_ALGORITHM); 458 return 0; 459 } 460 if (pkey != NULL) { 461 pkey->ameth = ameth; 462 pkey->type = pkey->ameth->pkey_id; 463 } 464 465 return 1; 466 } 467 LCRYPTO_ALIAS(EVP_PKEY_set_type_str); 468 469 int 470 EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) 471 { 472 if (!EVP_PKEY_set_type(pkey, type)) 473 return 0; 474 475 return (pkey->pkey.ptr = key) != NULL; 476 } 477 LCRYPTO_ALIAS(EVP_PKEY_assign); 478 479 EVP_PKEY * 480 EVP_PKEY_new_raw_private_key(int type, ENGINE *engine, 481 const unsigned char *private_key, size_t len) 482 { 483 EVP_PKEY *pkey; 484 485 if ((pkey = EVP_PKEY_new()) == NULL) 486 goto err; 487 488 if (!EVP_PKEY_set_type(pkey, type)) 489 goto err; 490 491 if (pkey->ameth->set_priv_key == NULL) { 492 EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); 493 goto err; 494 } 495 if (!pkey->ameth->set_priv_key(pkey, private_key, len)) { 496 EVPerror(EVP_R_KEY_SETUP_FAILED); 497 goto err; 498 } 499 500 return pkey; 501 502 err: 503 EVP_PKEY_free(pkey); 504 505 return NULL; 506 } 507 LCRYPTO_ALIAS(EVP_PKEY_new_raw_private_key); 508 509 EVP_PKEY * 510 EVP_PKEY_new_raw_public_key(int type, ENGINE *engine, 511 const unsigned char *public_key, size_t len) 512 { 513 EVP_PKEY *pkey; 514 515 if ((pkey = EVP_PKEY_new()) == NULL) 516 goto err; 517 518 if (!EVP_PKEY_set_type(pkey, type)) 519 goto err; 520 521 if (pkey->ameth->set_pub_key == NULL) { 522 EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); 523 goto err; 524 } 525 if (!pkey->ameth->set_pub_key(pkey, public_key, len)) { 526 EVPerror(EVP_R_KEY_SETUP_FAILED); 527 goto err; 528 } 529 530 return pkey; 531 532 err: 533 EVP_PKEY_free(pkey); 534 535 return NULL; 536 } 537 LCRYPTO_ALIAS(EVP_PKEY_new_raw_public_key); 538 539 int 540 EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, 541 unsigned char *out_private_key, size_t *out_len) 542 { 543 if (pkey->ameth->get_priv_key == NULL) { 544 EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); 545 return 0; 546 } 547 if (!pkey->ameth->get_priv_key(pkey, out_private_key, out_len)) { 548 EVPerror(EVP_R_GET_RAW_KEY_FAILED); 549 return 0; 550 } 551 552 return 1; 553 } 554 LCRYPTO_ALIAS(EVP_PKEY_get_raw_private_key); 555 556 int 557 EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, 558 unsigned char *out_public_key, size_t *out_len) 559 { 560 if (pkey->ameth->get_pub_key == NULL) { 561 EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); 562 return 0; 563 } 564 if (!pkey->ameth->get_pub_key(pkey, out_public_key, out_len)) { 565 EVPerror(EVP_R_GET_RAW_KEY_FAILED); 566 return 0; 567 } 568 569 return 1; 570 } 571 LCRYPTO_ALIAS(EVP_PKEY_get_raw_public_key); 572 573 EVP_PKEY * 574 EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv, size_t len, 575 const EVP_CIPHER *cipher) 576 { 577 EVP_PKEY *pkey = NULL; 578 CMAC_CTX *cmctx = NULL; 579 580 if ((pkey = EVP_PKEY_new()) == NULL) 581 goto err; 582 if ((cmctx = CMAC_CTX_new()) == NULL) 583 goto err; 584 585 if (!EVP_PKEY_set_type(pkey, EVP_PKEY_CMAC)) 586 goto err; 587 588 if (!CMAC_Init(cmctx, priv, len, cipher, NULL)) { 589 EVPerror(EVP_R_KEY_SETUP_FAILED); 590 goto err; 591 } 592 593 pkey->pkey.ptr = cmctx; 594 595 return pkey; 596 597 err: 598 EVP_PKEY_free(pkey); 599 CMAC_CTX_free(cmctx); 600 601 return NULL; 602 } 603 LCRYPTO_ALIAS(EVP_PKEY_new_CMAC_key); 604 605 void * 606 EVP_PKEY_get0(const EVP_PKEY *pkey) 607 { 608 return pkey->pkey.ptr; 609 } 610 LCRYPTO_ALIAS(EVP_PKEY_get0); 611 612 const unsigned char * 613 EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len) 614 { 615 ASN1_OCTET_STRING *os; 616 617 if (pkey->type != EVP_PKEY_HMAC) { 618 EVPerror(EVP_R_EXPECTING_AN_HMAC_KEY); 619 return NULL; 620 } 621 622 os = EVP_PKEY_get0(pkey); 623 *len = os->length; 624 625 return os->data; 626 } 627 LCRYPTO_ALIAS(EVP_PKEY_get0_hmac); 628 629 #ifndef OPENSSL_NO_RSA 630 RSA * 631 EVP_PKEY_get0_RSA(EVP_PKEY *pkey) 632 { 633 if (pkey->type == EVP_PKEY_RSA || pkey->type == EVP_PKEY_RSA_PSS) 634 return pkey->pkey.rsa; 635 636 EVPerror(EVP_R_EXPECTING_AN_RSA_KEY); 637 return NULL; 638 } 639 LCRYPTO_ALIAS(EVP_PKEY_get0_RSA); 640 641 RSA * 642 EVP_PKEY_get1_RSA(EVP_PKEY *pkey) 643 { 644 RSA *rsa; 645 646 if ((rsa = EVP_PKEY_get0_RSA(pkey)) == NULL) 647 return NULL; 648 649 RSA_up_ref(rsa); 650 651 return rsa; 652 } 653 LCRYPTO_ALIAS(EVP_PKEY_get1_RSA); 654 655 int 656 EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) 657 { 658 int ret = EVP_PKEY_assign_RSA(pkey, key); 659 if (ret != 0) 660 RSA_up_ref(key); 661 return ret; 662 } 663 LCRYPTO_ALIAS(EVP_PKEY_set1_RSA); 664 #endif 665 666 #ifndef OPENSSL_NO_DSA 667 DSA * 668 EVP_PKEY_get0_DSA(EVP_PKEY *pkey) 669 { 670 if (pkey->type != EVP_PKEY_DSA) { 671 EVPerror(EVP_R_EXPECTING_A_DSA_KEY); 672 return NULL; 673 } 674 return pkey->pkey.dsa; 675 } 676 LCRYPTO_ALIAS(EVP_PKEY_get0_DSA); 677 678 DSA * 679 EVP_PKEY_get1_DSA(EVP_PKEY *pkey) 680 { 681 DSA *dsa; 682 683 if ((dsa = EVP_PKEY_get0_DSA(pkey)) == NULL) 684 return NULL; 685 686 DSA_up_ref(dsa); 687 688 return dsa; 689 } 690 LCRYPTO_ALIAS(EVP_PKEY_get1_DSA); 691 692 int 693 EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) 694 { 695 int ret = EVP_PKEY_assign_DSA(pkey, key); 696 if (ret != 0) 697 DSA_up_ref(key); 698 return ret; 699 } 700 LCRYPTO_ALIAS(EVP_PKEY_set1_DSA); 701 #endif 702 703 #ifndef OPENSSL_NO_EC 704 EC_KEY * 705 EVP_PKEY_get0_EC_KEY(EVP_PKEY *pkey) 706 { 707 if (pkey->type != EVP_PKEY_EC) { 708 EVPerror(EVP_R_EXPECTING_A_EC_KEY); 709 return NULL; 710 } 711 return pkey->pkey.ec; 712 } 713 LCRYPTO_ALIAS(EVP_PKEY_get0_EC_KEY); 714 715 EC_KEY * 716 EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) 717 { 718 EC_KEY *key; 719 720 if ((key = EVP_PKEY_get0_EC_KEY(pkey)) == NULL) 721 return NULL; 722 723 EC_KEY_up_ref(key); 724 725 return key; 726 } 727 LCRYPTO_ALIAS(EVP_PKEY_get1_EC_KEY); 728 729 int 730 EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) 731 { 732 int ret = EVP_PKEY_assign_EC_KEY(pkey, key); 733 if (ret != 0) 734 EC_KEY_up_ref(key); 735 return ret; 736 } 737 LCRYPTO_ALIAS(EVP_PKEY_set1_EC_KEY); 738 #endif 739 740 741 #ifndef OPENSSL_NO_DH 742 DH * 743 EVP_PKEY_get0_DH(EVP_PKEY *pkey) 744 { 745 if (pkey->type != EVP_PKEY_DH) { 746 EVPerror(EVP_R_EXPECTING_A_DH_KEY); 747 return NULL; 748 } 749 return pkey->pkey.dh; 750 } 751 LCRYPTO_ALIAS(EVP_PKEY_get0_DH); 752 753 DH * 754 EVP_PKEY_get1_DH(EVP_PKEY *pkey) 755 { 756 DH *dh; 757 758 if ((dh = EVP_PKEY_get0_DH(pkey)) == NULL) 759 return NULL; 760 761 DH_up_ref(dh); 762 763 return dh; 764 } 765 LCRYPTO_ALIAS(EVP_PKEY_get1_DH); 766 767 int 768 EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) 769 { 770 int ret = EVP_PKEY_assign_DH(pkey, key); 771 if (ret != 0) 772 DH_up_ref(key); 773 return ret; 774 } 775 LCRYPTO_ALIAS(EVP_PKEY_set1_DH); 776 #endif 777 778 int 779 EVP_PKEY_type(int type) 780 { 781 const EVP_PKEY_ASN1_METHOD *ameth; 782 783 if ((ameth = EVP_PKEY_asn1_find(NULL, type)) != NULL) 784 return ameth->pkey_id; 785 786 return NID_undef; 787 } 788 LCRYPTO_ALIAS(EVP_PKEY_type); 789 790 int 791 EVP_PKEY_id(const EVP_PKEY *pkey) 792 { 793 return pkey->type; 794 } 795 LCRYPTO_ALIAS(EVP_PKEY_id); 796 797 int 798 EVP_PKEY_base_id(const EVP_PKEY *pkey) 799 { 800 return EVP_PKEY_type(pkey->type); 801 } 802 LCRYPTO_ALIAS(EVP_PKEY_base_id); 803 804 static int 805 unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, const char *kstr) 806 { 807 if (!BIO_indent(out, indent, 128)) 808 return 0; 809 BIO_printf(out, "%s algorithm \"%s\" unsupported\n", 810 kstr, OBJ_nid2ln(pkey->type)); 811 return 1; 812 } 813 814 int 815 EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, int indent, 816 ASN1_PCTX *pctx) 817 { 818 if (pkey->ameth && pkey->ameth->pub_print) 819 return pkey->ameth->pub_print(out, pkey, indent, pctx); 820 821 return unsup_alg(out, pkey, indent, "Public Key"); 822 } 823 LCRYPTO_ALIAS(EVP_PKEY_print_public); 824 825 int 826 EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, int indent, 827 ASN1_PCTX *pctx) 828 { 829 if (pkey->ameth && pkey->ameth->priv_print) 830 return pkey->ameth->priv_print(out, pkey, indent, pctx); 831 832 return unsup_alg(out, pkey, indent, "Private Key"); 833 } 834 LCRYPTO_ALIAS(EVP_PKEY_print_private); 835 836 int 837 EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, int indent, 838 ASN1_PCTX *pctx) 839 { 840 if (pkey->ameth && pkey->ameth->param_print) 841 return pkey->ameth->param_print(out, pkey, indent, pctx); 842 return unsup_alg(out, pkey, indent, "Parameters"); 843 } 844 LCRYPTO_ALIAS(EVP_PKEY_print_params); 845 846 int 847 EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) 848 { 849 if (!pkey->ameth || !pkey->ameth->pkey_ctrl) 850 return -2; 851 return pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 852 0, pnid); 853 } 854 LCRYPTO_ALIAS(EVP_PKEY_get_default_digest_nid); 855